High density fuel storage racks

Details High density fuel storage racks High density fuel storage racks

1977-04-04

1978-09-19

Smith, Alfred E.

Radiant energy

Radiation controlling means

Shields

250507, G21F 500

Patent

active

041157001

ABSTRACT:
An apparatus for the safe and compact storage of nuclear fuel assemblies in an array of discrete open-ended neutron absorbing shields for which the theoretical minimum safe separation distance and cell pitch are known. Open-ended stainless steel end fittings are welded to each end of each shield and the end fittings are welded to each other in side-by-side relation, thereby reducing the cell pitch tolerance due to fabrication uncertainties. In addition, a multiplicity of ridges on the sides of each shield having a height equal to one half the theoretical minimum safe separation distance further reduce shield bowing tolerances. The net tolerance reduction permits a significant increase in the number of fuel assemblies that can be safely contained in a storage area of fixed size.

REFERENCES:
patent: 3780306 (1973-12-01), Anderson et al.
patent: 3845315 (1979-10-01), Blum
patent: 4039842 (1977-08-01), Mollon
patent: 4042828 (1977-08-01), Rubinstein et al.
patent: 4044267 (1977-08-01), Bevilacqua

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